After you’ve set up and enabled Guest mode, lock the screen, then press the Power/Lock Key to re-display the Lock screen. Enter your Guest mode pattern. The Guest mode Home screen is displayed with only the apps you’ve selected for guest access. To exit Guest mode, simply access the Lock screen again and enter your normal unlock pattern.
The Guest mode feature is automatically turned off if your lock sequence is changed from Pattern. Otherwise, manually disable it if you no longer want to allow guest access.